Shaft power components


High speed, long life ball bearings

Second Quarter 2023 Shaft power components

Applications that demand high running speeds, easy handling and long service life will benefit from NSK’s new four-point contact ball bearings. The innovative QJ series features a high strength outer-ring-guided brass cage to facilitate extremely high speeds and improved running accuracy. Furthermore, a 35° contact angle provides longer operating life, thanks to the resulting high axial load capacity, which in turn minimises the costs associated with downtime and maintenance.

Among many notable features, the QJ series four-point contact ball bearings comprise an inner ring that splits into halves. Users can separate the outer ring of these advanced single-row angular contact ball bearings from the halves of the inner ring (split along a plane perpendicular to the shaft centre), to promote easy handling. QJ bearings are also able to sustain significant axial loads in both directions. As a result, they are ideal for carrying pure axial loads, or combined loads where the axial load is high. Another major advantage is the compact size. A single QJ unit can replace a face-to-face or back-to-back arrangement of conventional bearings, saving valuable design space.

Among a myriad applications are oil-free screw compressors, industrial pumps, tractor transmissions, robot gearboxes and servomotors. Further applications in the petrochemical, chemical and pharmaceutical industries can also take advantage of the added value these bearings provide. This delivers increased limiting speed, high dimensional and running accuracy, and a narrow axial clearance range. Additional advantages include reduced heat generation, vibration and noise.

For more information contact Geraldene Govender, NSK South Africa, +27 11 458 3600, nsk-sa@nsk.com, www.nsk.com




Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

NSK bearings help pet food plant raise OEE
Shaft power components
When a major UK pet food producer wanted better machine utilisation with the aim of raising its overall equipment effectiveness (OEE) by three points, it decided to ask experts at bearing specialist NSK if they could evaluate processes and systems to help with this improvement goal.

Read more...
Anti-surge valves
Valve & Automation Shaft power components
Anti-surge valves meet the most stringent requirements, and in the event of a disturbance must open lightning fast, with precise positioning and absolute reliability. One of the world’s leading compressor manufacturers selected Arca anti-surge valves for its compressor stations at a steel mill in Taiwan.

Read more...
SKF’s successful raid action in Cape Town
SKF South Africa Editor's Choice Shaft power components
Authorities, with collaborative support from SKF, recently conducted a large and highly effective raid on a very well-known bearing seller of SKF bearings in Cape Town.

Read more...
SKF and Bearings 2000 contribute to the circular economy
SKF South Africa Shaft power components
Throughout 2023, SKF Authorised Distributor, Bearings 2000 has supported SKF’s Remanufacturing Services with a strong focus on remanufacturing spherical roller bearings used in food and beverage applications, and also larger sized spherical roller bearings and deep groove ball bearings for the pulp and paper industry.

Read more...
Tsubaki sealed chains for harsh environments
Shaft power components
BMG’s extensive range of Tsubaki high-performance chains comprises engineering-class SJ3 sealed joint chains with improved sealing technology, designed to improve the reliability of many mechanical components exposed to harsh environments.

Read more...
Bearing technologies for agriculture
Shaft power components
With its innovative bearing solutions. NSK is addressing a trio of hot topics impacting the agriculture sector: sustainable tillage, chemical-free weed control, and the use of robotics.

Read more...
User friendly alignment tool for belt and chain drives
Shaft power components
The accurate alignment of belt and chain drives can make a considerable contribution to a plant’s overall production levels, and subsequent profitability. SKF’s TKBA series of belt alignment tools can align pulleys and sprockets accurately, and allow for corrections for various types of misalignment.

Read more...
Rocket science by ARCA
Shaft power components
Control valves from ARCA, a specialist in industrial process control, are playing a key role in the European Space Agency’s generation 6 ARIANE rocket launchers at its launch pad located near Kourou in French Guiana. They also feature in the SpaceX launch site, Starbase in South Texas.

Read more...
Lubricators sustain five years without breakdown
Shaft power components
After a food manufacturing plant suffered frequent breakdowns of its electrical motors, Lubrication Engineers (LE) recommended the use of automated single-point lubricators. Five years later the client ...

Read more...
Wind turbines with smart sensors
Instrotech Shaft power components
The wind’s usable kinetic energy increases with the wind speed. Wind turbines, therefore, use kinetic energy to generate torque and then rotational movement. The rotor, consisting of three rotor blades, ...

Read more...